security

iPhone ICCID Carrier Unlock: Activation Ticket Backup and Restore

6 minute read Published: 2026-06-22

ICCID activation was once a popular way to work around carrier locks on iPhones. If a previously activated device is jailbreakable, its activation ticket can be backed up and restored after a reset, iOS downgrade, or DFU restore. The ticket is device-specific and only preserves activation on the iPhone from which it was saved. Here I use my iPhone 5s (A1453, au/KDDI Japan model) as an example.

Comprehensive Guide to Kindle Jailbreaking

3 minute read Published: 2022-10-02

This tutorial provides a detailed walkthrough on jailbreaking the Kindle, allowing you to unlock additional functionalities and customize your device beyond the standard features. The process takes advantage of a vulnerability present in firmware version 5.14.2.

Easy Guide to Setting Up ZeroTier VPN

2 minute read Published: 2022-09-26

ZeroTier offers a seamless way to create secure networks linking various devices like on-premise systems, cloud platforms, desktops, and mobile devices. This connectivity enables team members to collaborate from virtually anywhere in the world on any device.

Easy Steps to Secure Free Certificates with ACME.sh

1 minute read Published: 2022-07-18

This guide is dedicated to demonstrating how you can obtain free certificates essential for setting up HTTPS websites or configuring trojan proxies. By leveraging the efficiency of the acme.sh tool, you can quickly secure these certificates.